[LINK] Alternatives to Skype

[Kim Holburn]

You know, if this Jitsi could interoperate with skype somehow, this might take off in a big way, but as long as it's as hard as standard VOIP to use: requires IT people to run; it's going to be as successful as standard VOIP.  The point of skype is that you don't need IT guys, that grandma can use it.  Of course now that Microsoft owns skype that will probably be difficult to interoperate with it.  Microsoft are the experts at stopping other software interoperating with their software.

On 2013/Feb/16, at 1:18 PM, Fernando Cassia wrote:

> On Fri, Feb 15, 2013 at 10:10 PM, Kim Holburn <kim.holburn at gmail.com> wrote:
>> The problem with alternatives to skype is that skype has a way of getting through firewalls by using random external servers/machines.    The main problem faced by any P2P (in the classical sense) is with domestic NAT routers.  VOIP standards are particularly broken, we've discussed this before on link.
> 
> http://code.google.com/p/ice4j/
> 
> "The Interactive Connectivity Establishment (ICE) protocol combines
> various NAT traversal utilities such as the STUN and TURN protocols in
> order to offer a powerful mechanism that allows Offer/Answer based
> protocols such as SIP and XMPP to traverse NATs"
> 
> http://en.wikipedia.org/wiki/Jitsi
> 
> "Among others Jitsi uses the JAIN-SIP protocol stack for SIP support
> and the Jive Software Smack library [9] for XMPP.[10]
> 
> The fact that Jitsi properly handles IPv6 is especially interesting
> for direct PC-to-PC (peer-to-peer) communication, for instance, if
> both sides are 'trapped' behind NAT routers, but obtain a reachable
> IPv6 address via a tunnel-broker.
> 
> The Jitsi community has also completed an ICE implementation called
> ice4j.org, which it uses to provide NAT traversal capabilities, and
> assist IPv4 to IPv6 transition.[11]"
> 
> Regards,
> FC
> 
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-- 
Kim Holburn
IT Network & Security Consultant
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